<template>
  <view>
	  <!-- 搜索组件 -->
	  <view class="search-box">
	  	  <my-search @click="gotoSearch"></my-search>
	  </view>
	   
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <!-- 循环渲染轮播图的 item 项 -->
      <swiper-item v-for="(item, i) in swiperList" :key="i">
        <navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id">
          <!-- 动态绑定图片的 src 属性 -->
         <image :src="item.image_src"></image>
        </navigator>
      </swiper-item>
    </swiper>
	
	<!-- 分类导航区域 -->
	<view class="nav-list">
	   <view class="nav-item" v-for="(item, i) in navList" :key="i" @click="navClickHandler(item)">
	     <image :src="item.image_src" class="nav-img"></image>
	   </view>
	</view>
	
	<!-- 楼层区域 -->
	<!-- 楼层的容器 -->
	
	<view class="floor-list">
	  <!-- 楼层 item 项 -->
	  <view class="floor-item" v-for="(item, i) in floorList" :key="i">
	    <!-- 楼层标题 -->
	    <image :src="item.floor_title.image_src" class="floor-title"></image>
		<!-- 楼层图片区域 -->
		<view class="floor-img-box">
		  <!-- 左侧大图片的盒子 -->
		  <navigator class="left-img-box"  :url="item.product_list[0].url">
		    <image :src="item.product_list[0].image_src" :style="{width: item.product_list[0].image_width + 'rpx'}" mode="widthFix"></image>
		  </navigator>
		  <!-- 右侧 4 个小图片的盒子 -->
		  <view class="right-img-box">
		    <navigator class="right-img-item" v-for="(item2, i2) in item.product_list" :key="i2" v-if="i2 !== 0" :url="item2.url">
		      <image :src="item2.image_src" mode="widthFix" :style="{width: item2.image_width + 'rpx'}"></image>
		    </navigator>
		  </view>
		</view>
	  </view>
	</view>
  </view>
</template>

<script>
	import badgeMix from '@/mixins/tabbar-badge.js'
	
	export default {
		  mixins: [badgeMix],
		data() {
			return {
				//这是轮播图的数据列表
				swiperList:[],
				//分类导航的数据列表
				navList:[],
				//楼层的数据
				 floorList: [],
			};
		},
		onLoad(){
			//调用方法，获取轮播图数据
			this.getSwiperList()
				this.getNavList()
				this.getFloorList()
			
		},
		methods:{
			async getSwiperList(){
				const { data: res} = await uni.$http.get('/api/public/v1/home/swiperdata')
				//请求失败
				if(res.meta.status !== 200) return uni.$showMsg()
				
				this.swiperList = res.message
				uni.$showMsg('数据请求成功！')
			},
			async getNavList(){
				const { data: res} = await uni.$http.get('/api/public/v1/home/catitems')
				if(res.meta.status !== 200) return uni.$showMsg()
				this.navList = res.message
			},
		// nav-item 项被点击时候的事件处理函数
		navClickHandler(item) {
		  // 判断点击的是哪个 nav
		  if (item.name === '分类') {
		    uni.switchTab({
		      url: '/pages/cate/cate'
		    })
		  }
		},
		//获取首页楼层数据的方法
		async getFloorList(){
			const { data: res} = await uni.$http.get('/api/public/v1/home/floordata')
			if(res.meta.status !== 200) return uni.$showMsg()
			 // 通过双层 forEach 循环，处理 URL 地址
			  res.message.forEach(floor => {
			    floor.product_list.forEach(prod => {
			      prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
			    })
			  })
			
			this.floorList = res.message
		},
		gotoSearch() {
		  uni.navigateTo({
		    url: '/subpkg/search/search'
		  })
		}
		}
	}
</script>

<style lang="scss">
swiper {
 height: 330rpx;

 .swiper-item,
 image {
   width: 100%;
   height: 100%;
 }
}

.nav-list {
  display: flex;
  justify-content: space-around;
  margin: 15px 0;

  .nav-img {
    width: 128rpx;
    height: 140rpx;
  }
}

.floor-title {
  height: 60rpx;
  width: 100%;
  display: flex;
}

.right-img-box {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}

.floor-img-box {
  display: flex;
  padding-left: 10rpx;
}

.search-box {
  // 设置定位效果为“吸顶”
  position: sticky;
  // 吸顶的“位置”
  top: 0;
  // 提高层级，防止被轮播图覆盖
  z-index: 999;
}
</style>
